Improvement



"w1 1. scHlLLlNa.

` Locks.

l N0.150,437. -r Patented May5,1374.`

WILLIAM J. SCHILLING, OF BROOKLYN, NEV YORK, ASSIGNORJOF ONE-HALF HIS RIGHT TO SYLVANUS LYON, OF SPRINGFIELD, NEW JERSEY.

IMPROVEMENT IN LOCKS.

Speciiication forming part of Letters Patent No. 150,437, dated May 5, 1874 5 application iled January 30, 1874.

To all whom 'it may concern:

Be it known that I, WILLLAM J osnrn SCHIL- LING,ot the city of Brooklyn, county of Kings, State of New York, have invented certain 11nprovernents in Locks, of which the following is a specication: v

My invention relates to improvements in the construction ofthe casing and bed-plate of that class ot` locks in which a circular metallic cylinderis employed to contain the lock mechanism, and which "is retained in position in a drawer, door, or other device by means of a screw-thread formed on the exterior ot such casing.

According to my invention, I employ a metallic cylinder having screw-retaining threads formed on its periphery, and a projecting rim provided with a notch or recess for the reception of a retaining screw or pin. The faccplate of the lock is formed circular, and is provided with a hole for the passage of the head of the bolt, which is supported upon a bedplate extending from the rear of the faceplate. To this bed-plate the key-pin and the bolt-guides are attached. An extension is also formed on the under side ofA the rear end of the bed-plate, by means ot' which and a screw passing through the rear end of the casing the bed and face plates and the lock'mechanism are retained in position. But that my invention may be fully understood, I will describe the same in detail by aid of the acconr panying drawings.

Figure 1 represents a s ctional view ot' a portion'of a' drawer with a lock constructed according to my invention inserted therein. Fig. 2 represents a plan view ot' the same. Fig. 3 is an end View, and Figs. 4 and 5 sections of the lock separately. Fig. 6 is a side view, and Figs. 7 and 8 opposite end views of the face and bed plates, and parts connected therewith, detached from the case.

A represents the external cylinder or case, in which the lock mechanism is placed, having screw-threads d formed on its periphery,

and a projecting rim, c, provided with a notch or recess, h, for the reception of a retaining screw or pin, t', which is driven into the wood7 thereby preventing the lock-case from turning in the event of the expansion of the wood-work or from other causes. The face-plate e is formed circular, and is provided with a hole, f, for the passage of the head g of the bolt g. The bolt g is supported upon a bed-plate, el, connected to and extending from the rear ot' the face-plate e. To this bed-plate el the key-pin e2 and the bolt-guides e3 e4 are attached. A semicircular extension, e5, is formed on the under side of the rear end of the bed-plate e, by means of which and a screw, e, passing through the rear end of the casing A, the bedplate e1 and face-plate e, as well as the lock mechanism, are retained in position. b represents the key-hole.

By this arrangement of the various parts I am enabled to produce a very cheap and useful lock, which can be readilyr iitted in position by simply `boring a circular hole, m, ot' the proper diameter, by means of a center-bit, in the front N of a drawer or other device; and if at any time the internal mechanism becomes deranged or damaged, it is simply necessary to remove the lock, and by withdrawing the screw or pin cG the face and bed plates e c1 and the whole of the internaltmechanism can be withdrawn from the casing A and repaired.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

' The combinatioinvwith a tubular lock-case,f 

